CN118806260B - Limb joint magnetic resonance coil fixing structure convenient to detach - Google Patents
Limb joint magnetic resonance coil fixing structure convenient to detach Download PDFInfo
- Publication number
- CN118806260B CN118806260B CN202411291699.1A CN202411291699A CN118806260B CN 118806260 B CN118806260 B CN 118806260B CN 202411291699 A CN202411291699 A CN 202411291699A CN 118806260 B CN118806260 B CN 118806260B
- Authority
- CN
- China
- Prior art keywords
- transmitting coil
- coil
- limiting
- receiving coil
- rear end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 210000003414 extremity Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 210000003423 ankle Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/702—Posture restraints
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- High Energy & Nuclear Physics (AREA)
- Physical Education & Sports Medicine (AREA)
- Radiology & Medical Imaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
本发明涉及磁共振设备技术领域，尤其涉及一种便于拆卸的四肢关节磁共振线圈固定结构，包括可拆卸安装在磁体检测孔内的发射线圈，磁体检测孔的前端设有用于限定发射线圈的前端限位装置，磁体检测孔的后端设有用于锁紧发射线圈的后端限位组件；发射线圈的内壁上设有发射线圈轨道槽，接收线圈的外壁上设有与发射线圈轨道槽配合使用的接收线圈轨道条，接收线圈滑动安装在发射线圈内，接收线圈轨道条与发射线圈轨道槽之间设有锁合装置；本发明可以将不同规格的发射线圈与接收线圈可以随意搭配，另外磁体检测孔上的后端限位组件也与各种发射线圈相适配，因此操作人员可以快速的切换发射线圈和接收线圈，延长了使用寿命，提高了操作效率。
The invention relates to the technical field of magnetic resonance equipment, and in particular to a detachable limb joint magnetic resonance coil fixing structure, comprising a transmitting coil detachably mounted in a magnet detection hole, wherein the front end of the magnet detection hole is provided with a front end limiting device for limiting the transmitting coil, and the rear end of the magnet detection hole is provided with a rear end limiting component for locking the transmitting coil; a transmitting coil track groove is provided on the inner wall of the transmitting coil, and a receiving coil track bar used in conjunction with the transmitting coil track groove is provided on the outer wall of the receiving coil, the receiving coil is slidably mounted in the transmitting coil, and a locking device is provided between the receiving coil track bar and the transmitting coil track groove; the invention can arbitrarily match transmitting coils and receiving coils of different specifications, and in addition, the rear end limiting component on the magnet detection hole is also compatible with various transmitting coils, so that an operator can quickly switch the transmitting coil and the receiving coil, thereby extending the service life and improving the operating efficiency.
Description
Technical Field
The invention relates to the technical field of magnetic resonance equipment, in particular to an extremity joint magnetic resonance coil fixing structure convenient to detach.
Background
At present, in the nuclear magnetic resonance field, domestic limb joint magnetic resonance products are already applied to clinical examination, and compared with a whole-body magnetic resonance system, the limb joint magnetic resonance system has the advantages of light volume, small occupied area, flexible and clear imaging of limb parts such as an examination ankle, a knee, a hand, an elbow and the like, and is slowly received and installed by various hospitals and detection centers.
Because four limbs joint magnetic resonance's imaging aperture is generally less, and the diameter that also leads to corresponding transmitting coil and receiving coil is less by its volume restriction, and the coil of single model can't satisfy multiple functional requirement, often needs to switch multiple type coil in clinical test in-process, needs transmitting coil and receiving coil of different models to carry out the free matching, consequently need the connecting piece between the two convenient dismantlement and long service life, moreover need transmitting coil and magnet detect between the hole easy to detach.
The coil types of the four-limb joint magnetic resonance equipment in the current market are few, the related matching is immature, and the service life of a connecting piece between a transmitting coil and a magnet detection hole in the prior art is short, so that the service efficiency and the service life of the four-limb joint magnetic resonance equipment are influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing the limb joint magnetic resonance coil fixing structure which can be widely applied to the field of small-aperture magnetic resonance, is convenient to detach and switch coils, has a simple structure, small size, is convenient and practical, and reduces the workload of medical staff for frequently switching coils in the examination process.
In order to solve the technical problems, the technical scheme is that the four-limb joint magnetic resonance coil fixing structure convenient to detach comprises a transmitting coil detachably arranged in a magnet detection hole, a front end limiting device used for limiting the transmitting coil is arranged at the front end of the magnet detection hole, a rear end limiting assembly used for locking the transmitting coil is arranged at the rear end of the magnet detection hole, a transmitting coil track groove is formed in the inner wall of the transmitting coil, a receiving coil track strip matched with the transmitting coil track groove is arranged on the outer wall of a receiving coil, the receiving coil is slidably arranged in the transmitting coil, and a locking device is arranged between the receiving coil track strip and the transmitting coil track groove.
As the preferable technical scheme, the transmitting coil comprises an outer cylinder and an inner cylinder sleeved in the outer cylinder, the transmitting coil track groove is a stepped groove body which is formed in the inner wall of the inner cylinder and axially extends, the rear end width of the transmitting coil track groove is larger than the front end width, a guide flanging is arranged at the joint of the rear end and the front end, the notch width of the transmitting coil track groove is smaller than the groove bottom width, a receiving coil limiting hole penetrating through the inner cylinder is formed in the rear end of the transmitting coil track groove, and a transmitting coil locking opening matched with the rear end limiting assembly is formed in the rear end of the transmitting coil penetrating through the inner cylinder and the outer cylinder.
As the preferable technical scheme, locking device is including seting up slot hole on the urceolus, movable mounting has rectangular arc board in the slot hole, rectangular arc board's both ends respectively with inner tube fixed connection, rectangular arc board's medial surface middle part fixed mounting has the direction stand, the cover is equipped with the spring on the direction stand, the top fixed mounting of direction stand has the spacing strip of receiving coil, the centre protrusion of the spacing strip of receiving coil is equipped with the lug, can extend when the lug pops up the spacing hole of receiving coil, spacing bayonet socket has been seted up at the rear portion of receiving coil track strip, spacing bayonet socket is followed when transmitting coil track groove displacement passes through the lug can the joint is in on the lug, the spacing strip of receiving coil is controlled its lift through lift drive.
As the preferable technical scheme, lift drive includes that fixed mounting is in guide arc board on the urceolus inner wall, guide arc board's both sides slidable mounting has the drive to open the lock arm, the front end bottom of drive to open the lock arm is equipped with the drive inclined plane respectively, the both ends of the spacing upper surface of receiving coil be provided with respectively with the driven inclined plane that the cooperation of drive inclined plane was used, works as the drive to open the lock arm and drive when the inclined plane of drive moves forward, oppression driven inclined plane makes its downward displacement, and then drives the spacing break away from of receiving coil spacing hole.
As the preferable technical scheme, the rear end of the inner cylinder is provided with a through hole for the driving opening arm to extend, and the rear end connecting the two driving opening arms is provided with a driving handle.
As the preferable technical scheme, the back end limiting component comprises a lock hole formed in the inner wall of the back end of the magnet detection hole, and further comprises a transmitting coil limiting device which is arranged in the magnet detection hole and can pop out and retract into the lock hole, and the extending direction of the transmitting coil limiting device is along the radial direction of the magnet detection hole.
As the preferential technical scheme, the transmitting coil stop device includes that fixed mounting is in stop device body on the magnet detection hole, the guide way has been seted up to the trailing flank of stop device body, the guiding hole has been seted up to the bottom of guide way, slidable mounting has the slider in the guide way, the draw-in groove has been seted up on the trailing flank of slider, the top fixed mounting of slider has the transmitting coil stopper, the bottom fixed mounting of slider has two parallel interval arrangement's guide posts, two the guide post runs through respectively corresponding guide way, is located the guide inslot the cover is equipped with reset spring on the guide post, fixed mounting has the round pin axle on the diapire of guide way, the epaxial swing arm that rotates of installing, the free end of swing arm be provided with the pothook that the draw-in groove cooperatees and use, the pothook is through the unilateral circulation multiple spot displacement realization in the draw-in groove the upper and lower displacement of transmitting coil stopper.
As the preferential technical scheme, demountable installation has the apron of shape and adaptation thereof on the trailing flank of stop device body, the apron orientation one side of guide way is offered and is used for dodging the groove of dodging of swing arm, the bottom surface fretwork of transmitting coil stopper is equipped with dodges the chamber, the top fixed mounting of slider is in dodge the intracavity, dodge the length in chamber is greater than stop device body's top length, dodge the width in chamber is greater than stop device body with the top total width that the apron combines together.
As the preferable technical scheme, front end stop device is the spacing ring, be equipped with spacing arch on the spacing ring, the front end of transmitting coil be equipped with spacing protruding matched with spacing sunken, when spacing sunken with spacing protruding meshing together, the spacing subassembly of rear end will transmitting coil locking is in the magnet detects the hole.
As the preferable technical scheme, the receiving coil track strip is a strip fixedly arranged at the bottom of the outer wall of the receiving coil, the cross section shape of the receiving coil track strip is matched with the cross section shape of the transmitting coil track groove, and the rear end of the receiving coil is provided with a receiving coil handle.
The invention has the advantages that the transmitting coils and the receiving coils with different specifications can be switched according to different detection positions and specific function requirements, the transmitting coil track grooves with the same structure are arranged on each group of transmitting coils, the receiving coil track bars with the same structure are arranged on each group of receiving coils, the structures of the locking devices between the receiving coil track bars and the transmitting coil track grooves are also the same, therefore, the transmitting coils with different specifications and the receiving coils can be matched at will, in addition, the receiving coil track bars on the receiving coil can be matched with the receiving coil track grooves at will, and the operating efficiency of the receiving coils can be prolonged due to the fact that the receiving coil with the receiving coil is matched with each receiving coil.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention. Wherein:
FIG. 1 is a schematic view of a detachable structure of a limb joint magnetic resonance coil fixing structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the transmitter coil and receiver coil of the present invention after installation;
FIG. 3 is a schematic diagram of an unlocking state structure of a rear end limiting assembly of a magnet detection hole;
FIG. 4 is a schematic diagram showing the structure of the locking state of the rear end limiting assembly of the magnet detection hole of the present invention;
FIG. 5 is a schematic diagram of a disassembled structure of a transmitting coil spacing device of the present invention;
FIG. 6 is a schematic diagram of the combined state structure of the transmitting coil of the present invention;
FIG. 7 is a cross-sectional view taken along the direction A-A in FIG. 6;
FIG. 8 is a schematic view of a partial structure of an inner barrel of a transmitting coil of the present invention;
Fig. 9 is a schematic diagram of the structure of a receiving coil of the present invention;
FIG. 10 is a cross-sectional view of the combined transmit and receive coils of the present invention;
FIG. 11 is a partial enlarged view of the unlocked state at I in FIG. 10;
FIG. 12 is an enlarged partial view of the locked condition at I in FIG. 10;
FIG. 13 is one of the partial schematic structural views of the outer cylinder of the transmitting coil of the present invention;
FIG. 14 is one of the partial schematic structural views of the locking device of the present invention;
FIG. 15 is a second schematic view of a portion of the locking device of the present invention;
FIG. 16 is a schematic view of the front end stop device of the magnet detection hole of the present invention;
FIG. 17 is a schematic view of the structure of a swing arm of the present invention;
FIG. 18 is a second schematic view of a partial structure of the outer cylinder of the transmitting coil of the present invention;
FIG. 19 is a schematic view of the engaging structure of the latch and hook of the present invention;
fig. 20 is a view showing the effect of the present invention.
In the figure, the magnetic body is 1-magnetic body detection hole, 11-front end limiting device, 111-limiting protrusion, 12-rear end limiting component, 121-lock hole, 122-limiting device body, 1221-guide groove, 1222-guide hole, 123-sliding block, 1231-clamping groove, 12311-first position, 12312-second position, 12313-third position, 12314-fourth position, 124-transmitting coil limiting block, 1241-avoidance cavity, 125-guide column, 126-reset spring, 127-pin shaft, 128-swing arm, 1281-clamping hook, 129-cover plate, 1291-avoidance groove, 2-transmitting coil, 21-outer cylinder, 22-inner cylinder, 23-transmitting coil track groove, 231-guide flanging, 232-receiving coil limiting hole, 24-transmitting coil locking opening, 25-transmitting coil handle, 26-limiting recess, 3-receiving coil, 31-receiving coil track strip, 311-limiting bayonet, 32-receiving coil handle, 4-locking device, 41-long hole, 42-strip plate, 43-guide column, 45-guide column, 45-receiving coil strip, 451-reset spring, 127-pin shaft, 128-swing arm, 1281-clamping hook, 129-guide flange, 53-driving arc opening and 53-driving arc opening and driving arc.
Detailed Description
The invention is further illustrated in the following, in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. It is needless to say that the person skilled in the art realizes that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope.
As shown in the drawings from 1 to 20, the fixing structure of the joint magnetic resonance coil of the limb joint convenient to detach comprises a transmitting coil 2 which is detachably arranged in a magnet detection hole 1, wherein the front end of the magnet detection hole 1 is provided with a front end limiting device 11 used for limiting the transmitting coil 2, the rear end of the magnet detection hole 1 is provided with a rear end limiting component 12 used for locking the transmitting coil 2, the inner wall of the transmitting coil 2 is provided with a transmitting coil track groove 23, the outer wall of a receiving coil 3 is provided with a receiving coil track bar 31 matched with the transmitting coil track groove 23, the receiving coil 3 is slidably arranged in the transmitting coil 2, a locking device 4 is arranged between the receiving coil track bar 31 and the transmitting coil track groove 23, according to different detection positions and specific functional requirements, the transmitting coil 2 and the receiving coil 3 of various different specifications can be switched, each group of transmitting coil 2 is provided with a transmitting coil track groove 23 with the same structure, each group of receiving coil 3 is provided with a receiving coil track bar 31 with the same structure, the locking device 4 between the receiving coil bar 31 and the transmitting coil track groove 23 is also the same, therefore, the operating efficiency of the receiving coil 2 and the receiving coil 2 can be switched between the receiving coil 2 and the receiving coil 2 can be prolonged, and the service life of the receiving coil assembly can be matched with the receiving coil 2 at will, and the operating efficiency of the receiving coil 1 is prolonged, and the service life of a personnel can be prolonged.
As shown in fig. 1, fig. 2, fig. 8, fig. 10, fig. 13 and fig. 18 together, the transmitting coil 2 comprises an outer cylinder 21 and an inner cylinder 22 sleeved in the outer cylinder 21, the transmitting coil track groove 23 is a stepped groove body axially extending on the inner wall of the inner cylinder 22, the rear end width of the transmitting coil track groove 23 is larger than the front end width, a guide flanging 231 is arranged at the joint of the rear end and the front end, the notch width of the transmitting coil track groove 23 is smaller than the groove bottom width, a receiving coil limiting hole 232 penetrating through the inner cylinder 22 is formed at the rear end of the transmitting coil track groove 23, and a transmitting coil locking opening 24 matched with the rear end limiting assembly 12 is formed at the rear end of the transmitting coil 2 penetrating through the inner cylinder 22 and the outer cylinder 21. The outer cylinder 21 and the inner cylinder 22 are buckled together to form the transmitting coil 2, and both sides of the rear end of the transmitting coil 2 are provided with transmitting coil handles 25 which are convenient for holding when the transmitting coil 2 is installed. The width of the transmitting coil track groove 23 is matched with the width of the receiving coil track bar 31, the receiving coil track bar 31 enters from the rear end of the transmitting coil track groove 23 and moves towards the front end of the transmitting coil track groove 23 under the action of the guide flange 231 until being abutted to the front end face of the transmitting coil track groove 23, the limit bayonet 311 is located at the long hole 41, the notch width of the transmitting coil track groove 23 is smaller than the groove bottom width, and therefore the receiving coil track bar 31 can be prevented from being separated from the transmitting coil track groove 23 up and down, left and right and can only move along the extending direction of the transmitting coil track groove 23, and the stability of the receiving coil 3 during moving is guaranteed. The transmitting coil locking port 24 is used for locking with the magnet detecting hole 1.
As shown in fig. 9 to 15 and 18, the locking device 4 includes a long hole 41 formed on the outer cylinder 21, a long arc plate 42 is movably mounted in the long hole 41, two ends of the long arc plate 42 are fixedly connected with the inner cylinder 22 respectively, a guide upright post 43 is fixedly mounted in the middle of the inner side surface of the long arc plate 42, a spring 44 is sleeved on the guide upright post 43, a receiving coil limiting strip 45 is fixedly mounted at the top end of the guide upright post 43, a bump 451 is protruded in the middle of the receiving coil limiting strip 45, a receiving coil limiting hole 232 can be extended out when the bump 451 is sprung, a limiting bayonet 311 is formed at the rear part of the receiving coil rail 31, and the limiting bayonet 311 can be clamped on the bump 451 when moving along the transmitting coil rail groove 23 and passing through the bump 451, and the receiving coil limiting strip 45 is controlled to lift by the lifting driving device 5. The shape of rectangular arc board 42 and slot hole 41 looks adaptation, rectangular arc board 42 and inner tube 22 fixed connection can guarantee like this that when lift drive 5 control receiving coil spacing 45 displacement from top to bottom, rectangular arc board 42 can not interfere it, and guide post 43 and spring 44 have guaranteed the stability when the spacing 45 displacement of receiving coil in addition.
As shown in fig. 3 to 13 and 18, the lifting driving device 5 includes a guiding arc plate 51 fixedly mounted on the inner wall of the outer cylinder 21, driving opening arms 52 are slidably mounted on two sides of the guiding arc plate 51, driving inclined planes 521 are respectively provided at the bottom of the front ends of the driving opening arms 52, passive inclined planes 452 matched with the driving inclined planes 521 are respectively provided at two ends of the upper surface of the receiving coil limiting bar 45, and when the driving opening arms 52 drive the driving inclined planes 521 to move forward, the passive inclined planes 452 are pressed to displace downward, so that the receiving coil limiting bar 45 is driven to separate from the receiving coil limiting holes 232. As shown in fig. 2 and 13 together, the rear end of the inner cylinder 22 is provided with a through hole from which the drive-opening arms 52 extend, and the rear end connecting the drive-opening arms 52 is provided with a drive handle 53. The guide arc plate 51 guides the displacement of the drive-release arm 52, and the drive handle 53 controls the forward and backward displacement of the drive-release arm 52.
When the receiving coil 3 is installed, the front end of the receiving coil track bar 31 of the receiving coil 3 is required to be placed on the tail end of the transmitting coil track groove 23, the receiving coil handle 32 is pushed by hand to advance, the transmitting coil track groove 23 is tightly matched with the receiving coil track bar 31, and the receiving coil 3 can be ensured to slide back and forth only on the transmitting coil track groove 23 without shaking. The bump 451 is in the sprung position by the elastic force of the spring 44 in the default state, and when the receiving coil rail 31 passes through the long hole 41 of the transmitting coil rail groove 23, the bump 451 is pressed down by the gravity of the receiving coil 3, and the front end of the receiving coil rail 31 can normally pass through the transmitting coil rail groove 23. When the front end of the receiving coil rail 31 touches the front end face of the transmitting coil rail groove 23, the limit bayonet 311 on the receiving coil rail 31 is just located on the bump 451, the bump 451 is sprung up to lock the receiving coil rail 31, and the transmitting coil 2 is installed.
When the receiving coil 3 is dismounted, the driving handle 53 is pushed forward, the driving handle 53 is fixedly connected with the driving unlocking arm 52, the front end of the driving unlocking arm 52 is provided with a driving inclined plane 521, the driving inclined plane 521 is contacted with a passive inclined plane 452 on the receiving coil limiting bar 45, the receiving coil limiting bar 45 moves downwards under the action of pushing force, the protruding block 451 is driven to move downwards, and the spring 44 is compressed. At this time, the receiving coil handle 32 is pulled, so that the receiving coil 3 can be pulled out smoothly, and the disassembly of the receiving coil 3 is completed. The above steps are only needed when the receiving coil 3 is switched.
As shown in fig. 1 and fig. 3 to fig. 7 together, the rear end limiting component 12 includes a locking hole 121 formed on the inner wall of the rear end of the magnet detection hole 1, and further includes a transmitting coil limiting device mounted inside the magnet detection hole 1 and capable of ejecting and retracting the locking hole 121, wherein the extending and retracting direction of the transmitting coil limiting device is along the radial direction of the magnet detection hole 1. When the transmitting coil limiting device pops up, the transmitting coil limiting device stretches into the lock hole 121 to lock the transmitting coil 2, and when the transmitting coil limiting device retracts, the transmitting coil 2 is unlocked, and the transmitting coil 2 can be detached.
As shown in fig. 3 to 7, 17 and 19 together, the transmitting coil limiting device comprises a limiting device body 122 fixedly mounted on a magnet detection hole 1, a guide slot 1221 is formed in the rear side surface of the limiting device body 122, a guide hole 1222 is formed in the bottom of the guide slot 1221, a sliding block 123 is slidably mounted in the guide slot 1221, a clamping slot 1231 is formed in the rear side surface of the sliding block 123, a transmitting coil limiting block 124 is fixedly mounted at the top end of the sliding block 123, two guide posts 125 which are arranged at intervals in parallel are fixedly mounted at the bottom end of the sliding block 123, the two guide posts 125 penetrate through the corresponding guide holes 1222 respectively, a return spring 126 is sleeved on the guide posts 125 in the guide slot 1221, a pin 127 is fixedly mounted on the bottom wall of the guide slot 1221, a swing arm 128 is rotatably mounted on the pin 127, a hook 1281 matched with the clamping slot 1231 is arranged at the free end, and the hook 1281 is moved in a unidirectional circulation manner in the clamping slot 1231 to realize up-down displacement of the transmitting coil limiting block 124. As shown in fig. 3 to 7 together, the cover plate 129 with a shape adapted to the rear side of the limiting device body 122 is detachably mounted on the rear side of the limiting device body 122, an avoidance groove 1291 for avoiding the swing arm 128 is formed in one side of the cover plate 129 towards the guide groove 1221, an avoidance cavity 1241 is formed in the bottom surface hollow of the transmitting coil limiting block 124, the top end of the sliding block 123 is fixedly mounted in the avoidance cavity 1241, the length of the avoidance cavity 1241 is greater than the top length of the limiting device body 122, and the width of the avoidance cavity 1241 is greater than the total top width of the limiting device body 122 and the cover plate 129 combined together.
When the transmitting coil stopper 124 is in the sprung state, as shown in fig. 4 and 19, the hook 1281 is located at the first position 12311 of the slot 1231. When the transmitting coil 2 is installed, the transmitting coil 2 needs to be placed in the magnet detecting hole 1, and the transmitting coil stopper 124 needs to be in a compressed state. At this time, the transmitting coil limiting block 124 is manually pressed, the sliding block 123 slides downwards, the clamping hook 1281 slides along the clamping groove 1231, the clamping hook 1281 swings along the pin shaft 127 along with the swing arm 128, the clamping hook 1281 slides to the second position 12312 of the clamping groove 1231 to release hands, at this time, the sliding block 123 slides upwards under the spring action of the return spring 126, the clamping hook 1281 automatically slides to the fourth position 12314 of the clamping groove 1231, the clamping hook 1281 clamps the sliding block 123, the transmitting coil limiting block 124 is in a compressed state, and the transmitting coil 2 can be smoothly pushed along the magnet detecting hole 1.
When the front end face of the transmitting coil 2 touches the front end limiting device 11, the mounting position is reached, and the transmitting coil locking port 24 just passes through the transmitting coil limiting block 124. The transmitting coil limiting block 124 is manually pressed, the sliding block 123 slides downwards, the clamping hook 1281 slides along the clamping groove 1231, the clamping hook 1281 can be loosened when sliding to the third position 12313, at the moment, the sliding block 123 slides upwards under the spring action of the reset spring 126, the clamping hook 1281 automatically slides to the first position 12311 of the clamping groove 1231, the clamping hook 1281 clamps the sliding block 123, the transmitting coil limiting block 124 is in a spring state, the transmitting coil locking port 24 just passes through the transmitting coil limiting block 124, and the transmitting coil 2 is locked. The above steps are repeated when switching the transmitting coil 2.
As shown in fig. 1, fig. 2 and fig. 16 together, the front end limiting device 11 is a limiting ring, a limiting protrusion 111 is arranged on the limiting ring, a limiting recess 26 matched with the limiting protrusion 111 is arranged at the front end of the transmitting coil 2, and when the limiting recess 26 and the limiting protrusion 111 are meshed together, the rear end limiting assembly 12 locks the transmitting coil 2 in the magnet detecting hole 1. The limiting projection 111 not only plays an axial limiting role, but also plays a circumferential limiting role.
As shown in fig. 2 and fig. 9 together, the receiving coil rail 31 is a strip fixedly mounted at the bottom of the outer wall of the receiving coil 3, the cross-sectional shape of the receiving coil rail 31 is adapted to the cross-sectional shape of the transmitting coil rail groove 23, and the receiving coil 3 is provided with a receiving coil handle 32 at the rear end. The cross-sectional shape of the receiving coil rail 31 is not limited and only needs to be adapted to the cross-sectional shape of the transmitting coil rail groove 23. The receiving coil handle 32 facilitates pushing and pulling the receiving coil 3.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411291699.1A CN118806260B (en) | 2024-09-14 | 2024-09-14 | Limb joint magnetic resonance coil fixing structure convenient to detach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411291699.1A CN118806260B (en) | 2024-09-14 | 2024-09-14 | Limb joint magnetic resonance coil fixing structure convenient to detach |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118806260A CN118806260A (en) | 2024-10-22 |
| CN118806260B true CN118806260B (en) | 2024-12-31 |
Family
ID=93065990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411291699.1A Active CN118806260B (en) | 2024-09-14 | 2024-09-14 | Limb joint magnetic resonance coil fixing structure convenient to detach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118806260B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201398969Y (en) * | 2009-04-10 | 2010-02-10 | 西门子迈迪特(深圳)磁共振有限公司 | Magnetic resonance imaging device with movable body coil |
| CN106872918A (en) * | 2017-04-01 | 2017-06-20 | 上海联影医疗科技有限公司 | Magnetic resonance local coil base, local coil component and ankle coil block |
| CN213309704U (en) * | 2020-06-24 | 2021-06-01 | 西门子(深圳)磁共振有限公司 | Magnetic resonance imaging apparatus and magnetic resonance imaging system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1421449A (en) * | 1964-10-30 | 1965-12-17 | Kureha Spinning Co | Method and device for automatic lifting of spinning reels |
| CN219398644U (en) * | 2023-03-31 | 2023-07-25 | 北京万思医疗科技有限公司 | Catheter support tube, catheter support assembly and vascular intervention surgical robot |
-
2024
- 2024-09-14 CN CN202411291699.1A patent/CN118806260B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201398969Y (en) * | 2009-04-10 | 2010-02-10 | 西门子迈迪特(深圳)磁共振有限公司 | Magnetic resonance imaging device with movable body coil |
| CN106872918A (en) * | 2017-04-01 | 2017-06-20 | 上海联影医疗科技有限公司 | Magnetic resonance local coil base, local coil component and ankle coil block |
| CN213309704U (en) * | 2020-06-24 | 2021-06-01 | 西门子(深圳)磁共振有限公司 | Magnetic resonance imaging apparatus and magnetic resonance imaging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118806260A (en) | 2024-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211834686U (en) | Surgical robot with three degree of freedom instrument | |
| EP3932257B1 (en) | Furniture system | |
| JP2004525696A (en) | Actuating mechanism and pressurizing device for fluid displacement | |
| WO2021189688A9 (en) | Biopsy device, and firing and unlocking mechanism, sampling stroke adjusting mechanism, and drawing and firing method thereof | |
| CN100372505C (en) | Multiple-use biopsy apparatus and corresponding single-use biopsy instrument | |
| CN118806260B (en) | Limb joint magnetic resonance coil fixing structure convenient to detach | |
| US11927000B2 (en) | Structure for picking and placing hand shower | |
| US20160038102A1 (en) | Patient table and control device of pallet of patient table | |
| CN109114101B (en) | Splicing device | |
| CN114587596A (en) | Quick plug device, actuating mechanism and surgical robot | |
| CN115252142B (en) | Surgical navigation positioning robot and quick release type end effector thereof | |
| CN114293845B (en) | Handle device and disassembly and assembly method thereof | |
| CN213721991U (en) | Animal blood collector | |
| CN222486185U (en) | Aerosol generating rod ejection mechanism and aerosol generating device | |
| CN212376438U (en) | Window handle | |
| CN115670147A (en) | Slide rail assembly for locking and dismounting drawer | |
| CN214434482U (en) | Quick plug devices, actuators and surgical robots | |
| CN209900321U (en) | Needle separating mechanism for automatic needle separator | |
| EP3647155A1 (en) | Foldable golf cart | |
| CN208301659U (en) | Magnetic resonance imaging equipment and patient bed for it | |
| CN222693554U (en) | Emergency retraction mechanism for instrument | |
| CN115154748B (en) | Infusion pump | |
| CN219109034U (en) | Sliding rail assembly for locking and dismounting drawer | |
| CN221256477U (en) | Lock catch type rebound device | |
| CN114762600B (en) | Multi-speed rotary drive structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |